1. Turning on the power
To turn the unit on, press
the power button. The unit will begin a start up
process and automatically re-stabilize the alcohol sensor.
The LCD display will undergo a countdown sequence,
indicating that purge cycles and circuit tests are taking
place. This process generally take 30 seconds but can
last 2 minutes. The warm up process is complete once two beeps sound, the WAIT sign turns off, and 0.00 is displayed on LCD screen.
2. Blow in the unit
Making sure your mouth is close
to the sensor, blow a deep breath for at least 2 seconds.
3.
Display
Range |
Audio Function |
0.00%
- 0.01% |
1 beep sound |
0.02%
- 0.04% |
2
beep sound |
| 0.05%
- |
Beep
sound for 5 sec. |
Note: The LCD screen will display the exact
BAC value, not just a range. |
4. Retesting
When "WAIT"
sign on the LCD is no
longer illuminated and display 0.00 on LCD , the unit is reset and ready for retesting.
5.
Low battery indicator
The AL 2500 lets you know when the battery is low. 
sign lights at the low battery and indicates fresh
batteries should be installed before retesting.
Cautions(
ALKALINE BATTERY ONLY.)
1.
Allow at least 15 minutes after consuming alcohol before testing.
2. Enclosed rooms with low
ventilation or air conditioning may increase wait time necessary between tests.
3. Spittle or alcohol contamination of the
alcohol sensor will delay reset time between tests. In the event of spittle or alcohol contamination,
the unit can be shaken to ensure a quick recovery of
the sensor.
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